Blog· Image · October 12, 2026
PNG, JPG or WebP: which format to use in each situation?
Compare transparency, sharpness and file size to choose between PNG, JPEG and WebP with practical examples.
Anyone who publishes images on websites soon realizes that the same file can be very light in one format and huge in another. But size doesn't tell the whole story. A photograph, a graphic with small print, and a transparent logo all have different needs. Therefore, converting everything to the same format usually creates unnecessary problems.
JPG works well for photos
JPEG, commonly called JPG, reduces visual information to reduce file weight. In photos with shadows, skin, and lots of detail, moderate compression can keep things looking good. When exaggerated, blocks and blurs appear, especially near text and thin lines.
It is a common choice for photographs of articles, messages and catalogs when there is no need for a transparent background. If a photo has already been saved many times in JPG, exporting it again in low quality adds losses; always keep the original file.
PNG better preserves graphics and transparency
PNG uses lossless compression for the pixels it stores and can record partial transparency. This helps with screenshots, diagrams with text, icons, and cropped images. The price may be for a larger file, especially on large photographs.
If you used theremove background, download the result in PNG when you need to keep the crop transparent. Converting PNG to JPG will make the transparent background disappear as JPG does not support this feature.
WebP serves many uses on the web
WebP supports lossy or lossless compression and can preserve transparency. On multiple images for pages, it offers a good quality-to-weight ratio. However, older programs and some print flows may have limited support. Check where the image will open before sending just a WebP version.
A more useful test than generic numbers
Choose a real image from your project and make three exports using theimage converter. Open side-by-side versions with the same size on the screen. Observe letters, strands of hair, gradients and details of the face; then compare the size in KB or MB.
If the target is a form with a mandatory format, follow the requirement even if another extension compresses better. If the target is a website, combine appropriate dimensions with balanced compression using theimage compression. Reducing the width of an overly large image often helps as much as changing the extension.
It is not necessary to choose a single format for life. Use JPG for regular photos, PNG when sharp edges and transparency matter, and WebP when the target accepts it and you need to balance quality and performance.
